Not sure why everyone is welcoming you back, but I guess that is in order? Welcome back.
On to your questions, maybe with some answers that could help??? First, no, I don't think you are too late to try. Second, I think someone suggested personal ads or something. I think there are many online classified sites, but you could also start a thread on this site, posting what you are looking for and in the area - like jo buds or looking for first m2m,write up a little about yourself or not, what you are looking for, kind of like you did here.
I started myself out of curiosity, I think a bit influenced by reading stories about m2m or mmf. I was younger and visited sex shops that had video booths with glory holes. I don't think I was even old enough to be allowed in there. I kind of was a little surprised that someone would be doing that, but it also excited me lots to be touching another cock, stroking them. Eventually I got up the nerve to put my hard cock through and was blown away by the feel of another guy stroking me and then even more when I felt their mouth on me. Yes, I came very quickly! I just knew I wanted to try that too, at least the sucking idea, giving a blowjob but not having them cum in my mouth. I loved the feel and discovery of holding and jerking different cocks, from semi hard to rock hard, but still a little soft and spongy, warm, feeling them pulse, swell, and then eventually cum as I stroked them and also played with their balls as some of the gh's were large enough to have them fit. Later guys actually asked if they could come in the booth with me. That was another level, watching them, not only feeling them, suck on me, letting me cum in their mouths, tasting and swallowing my cum. I did this off and on through college, then eventually stopped.
Later on in life, the desire to do that again came on strong. I was older as well, but remember most of the guys that I met with before were older too. I was lucky enough to have an area that had a reputation of being a cruising area where guys would go and park to meet other guys. That is how I mostly met them. A couple of times while traveling out of town I used a website to find someone. Personally I am only into mutual jo and oral. I haven't let someone cum in my mouth and swallow, yet, but I think one guy did accidentally cum a little in my mouth as he started cumming as he was pulling back out. I really want to try that too, but also am not pursuing a lot,like I haven't put out a message on a board or even a thread here. Maybe I will.
I stopped for a bit and then started having c2c sessions, skype mostly, and really enjoying doing that, stroking with and for other guys, cumming together, but now have that itch again, to hold another cock, feel it's warmth, hold it and watch it grow, slowly and softly stroke it, then as I play with their balls go down and suck on it. I think I will let them cum in my mouth, it is really something I want to try.
As for safety, I am healthy, and the guys that I have connected with were also, or so they said they are tested regularly, or are very discreet and aren't with a lot of guys. And I haven't really had other's cum in my mouth or swallowed. But I have tasted precum - I really like the way it tastes and feels. And tasting my own cum only reinforces and adds to my desire to try that and make someone feel the way I do when I cum in their mouths, we will both enjoy that experience.